Date: Tue, 07 Apr 2009 13:38:56 +0100 From: Chris Whitehouse <cwhiteh@onetel.com> To: Valentin Bud <valentin.bud@gmail.com> Cc: freebsd-questions <freebsd-questions@freebsd.org> Subject: Re: C programming question Message-ID: <49DB4960.8070109@onetel.com> In-Reply-To: <139b44430904070241j5227d178jd75f6a93057a150a@mail.gmail.com> References: <139b44430904070241j5227d178jd75f6a93057a150a@mail.gmail.com>
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Valentin Bud wrote: > Hello community, > > I have built with a micro controller a system of power plugs that can be > controlled through the serial port. > I have 2 plugs that i can start/stop and check the status of them. This is > accomplished by sending different > letters (eg. A/W) to start/stop one of the plugs and another set of letter > for the other plug and one letter > to check the status. > > Taking into account the fact that my C skills are almost 0 how complicated > would be to write a program > so I can control that micro controller through the serial port. Or is there > some kind of program that can > read/write from/to the serial port from the command line. I don't want an > interactive program like minicom, > just a program that connects and send a command (a letter in my case) to the > serial port. > > Why not minicom (or any other program like it)? My goal is to be able to > start/stop the plugs using a web interface. > I have tried using minicom and background it but when i log out minicom > closes. If minicom is started i can > send commands to ttyd0 with echo, but i can't read anything from serial. > > Now back to my original question, how hard/complicated will it be to write > a C program to control the micro controller > through the serial port. > > Of course on FreeBSD :). > > thanks, > v > There are some things here http://www.vitsch.net/ which might be useful see lampd, lampgui and An 8-output solid state mains-switch. It's all pretty old but then so are serial ports :) Chris
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